Mlar
abbr. multilayer antireflection coating 多层消反射涂层，多层增透膜
🗣️ 情景例句
You may be offered coffee, and then you should immediately announce the reason for your visit.
他们会给你冲咖啡，然后你应该尽快说明来意。
Why are you so sad?
你为什么这样伤心？
Excuse me!
打扰一下。